ARG-ST as a head feature

[Carl Pollard]

One other thing I forgot to mention: since the conjunction/disjunction
lattice and the coordination/neutralization lattices are distinct, you
can take disjunctions over principal filters/ideals in the
coordination/neutralzation lattices. Then you can deal with selection
of coordinate structures and syncretic forms by conjunction
("unification"), the thing that Ingria is widely believed to have
shown to be impossible.

Carl